I have a vdi with winXP installed on it and it boots fine from virtualbox. I am trying to convert it to VMDK format and I run into th following errorNote the run path and the error file location are different too. I dont understand why it is trying to reference to something in /Users/huckym/Library/VirtualBox/HardDisks/ location! That dir is empty

This is a pretty old thread. A good idea would be to check the documentation of your current version of VB. If I can remember well, what I did was use the same VBoxManage clonehd but give apsolute path to the vdi image instead of relative on the commandline -> VBoxManage clonehd <full path>/File.vdi .....